
<div class="panel panel-default panel-intro">

    <div class="panel-body">
        <div id="myTabContent" class="tab-content">

            <div class="tab-pane fade active in" >
                <div class="row">
                    <div class="col-xs-12">

                        <div id="echart" class="btn-refresh" style="height:300px;width:100%;"></div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

